Question

Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell and the formation of nuclei at opposite poles of the cell. The cell under examination was most likely a(n):_______.a) plant cell undergoing cytokinesis.b) plant cell in the anaphase stage.c) animal cell in the M phase of the cell cycle.d) animal cell undergoing cytokinesis.e) dividing bacterial cell.

Answer 1

plant cell undergoing cytokinesis.

Step-by-step explanation:

The process whereby the cytoplasm of a dividing parent cell divided to give two daughter cells is called Cytokinesis. It begins with the formation of deep furrow at Anaphase in animal cells and as preprophase band at Prophase in plant cells. It terminate at Telophase of the two cell divisions.

Generally Cytokineses begins when the preprophase band (microtubules + cytoskeleton) is wound around the parent cell at prophase, The bands indicated the position of the cell plate at the equator of the dividing parent cell, and disintegrate before metaphase.

At Anapahse the Cell plate forms the middle lamella separating the eventual two daughter- plant cells. On each side of the middle lamella, structural materials which forms the secondary and primary walls of the new plants cells were also deposited, and this aids the separations of the two plant cells at the end of Telophase..

Answer 2

a) plant cell undergoing cytokinesis

Step-by-step explanation:

All living cells undergo cell division, which occurs in different stages. Each stage is characterized by distinct occurences or change that happens in the cell. This change described in the question best suits that of a plant cell undergoing CYTOKINESIS, which is the division of the cytoplasmic content (last stage of the cell cycle). Nuclear envelopes are forming to encompass the separated chromosomes (during anaphase) in each poles of the cell.

It is affirmed as a plant cell because of the distinct formation of a cell plate in the middle of the plant cell where a new cell wall is formed between the two membranes of the cell plate which divides the cell into two. A cell plate is formed as opposed to cleavage furrow in animal cells because of the possession of cell walls in plant cells.